Verses with the word mahershalalhashbaz in the Old Testament (2 verses):
Isaiah 8:1
Moreover the LORD said unto me, Take thee a great roll, and write in it with a man's pen concerning Mahershalalhashbaz.
Isaiah 8:3
And I went unto the prophetess; and she conceived, and bare a son. Then said the LORD to me, Call his name Mahershalalhashbaz.